巻号一覧
1953 巻, 9 号
選択された号の論文の16件中1～16を表示しています
- |<
- <
- 1
- >
- >|
-
磯部 愉一郎1953 年 1953 巻 9 号 p. 3-4
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーPDF形式でダウンロード (472K) -
澤田 彰逸1953 年 1953 巻 9 号 p. 5
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーPDF形式でダウンロード (365K) -
辻正 一郎1953 年 1953 巻 9 号 p. 6-7
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーPDF形式でダウンロード (441K) -
遠山 光一1953 年 1953 巻 9 号 p. 8-13
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーPDF形式でダウンロード (2470K) -
冷間加工材の予備加熱の影響清水 恭治, 中谷 義三1953 年 1953 巻 9 号 p. 14-18
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーInfluence of preheating of cold worked sheet on the recrystallized grain size of 3S alloy has been studied. The result as follows:
(1) For 3.3m/m (reduction 46%) Sheet, the recrystallized grain becomes finer, within 600°and 15hrs, with the increases of preheating temperature and time.
(2) As the cold working is given hardly before preheating, the preheating temperature and time, resalting in the minimum recrystallized grain size, change to the lower or shorter side.
(3) The more the cold working after preheating is hard, the more the recrystallized grain size is small.
(4) With the decrease in cooling rate after preheating the grain refinement is remarkable.
(5) Comparing the results, it is considered that in the practical operation the cold working before preheating following the faster precipitation of dispersoid will be much more effective for the recrystallized grain refinement than that after preheating.抄録全体を表示PDF形式でダウンロード (615K) -
Reflectal合金に就て川島 浪夫, 中村 雄造1953 年 1953 巻 9 号 p. 19-27
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーRecently, the Al-Mg alloy based on high-purity aluminum are used for reflectors, utensils, fittings, dentistry and jewellery in abroad.
Electrolytically polished and anodized high-purity aluminum (99.99%up) has excellent reflection properties, but its strength is too low to use for them. It is said that an addition of 0.3-1.0% Mg improves its strength without deteriorating the reflection properties and corrosion resistance. These alloys are called as Reflectal, Lurium and etc.
In this paper the properties of Raffinal, Reflectal 0.5, Reflectal 1.0 and other alloys are compared with those of 99.7%Al to ascertain the effect of Mg addition.抄録全体を表示PDF形式でダウンロード (1758K) -
国本 隆, 池田 栄三, 堀 英生, 武上 善明1953 年 1953 巻 9 号 p. 28-41
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーWhen the small amount of manganese are contained in the commercially pure aluminum, the remarkable grain growth and the germination by deep drawing sometimes take place in the annealed sheets.
In this paper, we intended to determine the allowable limit of manganese content up to which the grain growth and the germination are not caused under the normal annealing condition of commercially pure aluminum.
The results obtained are as follows.
(1) When the manganese content is not more than 0.05%, any annealing methods may give the successful results.
(2) Although the manganese content increases over 0.05%, the high temperature-short time annealing above 500°C. is proved satisfactory up to 0.10%Mn.
(3) In the range of low manganese content, too high annealing temperature is not preferrable, but in the high manganese content range close to 3S, it is indispensable to anneal in the high temperature salt bath.
(4) Although the effect of heating rate is very remarkable, this heating rate is not so low speed order that has been considered to date, but it is so higher speed order as the difference between air bath heating and salt bath heating. Moreover, it seems to be the heating rate at which the specimens pass through some considerablly lower range (probably close to starting temperature of recrystallization) that affects the size of recrystallized grain.
(5) There are two temperature ranges which have the relation to the growth of recrystallized grain. One is in the relatively lower range of temperature, and the other is in the higher temperature range. The former is probably based on the production of recrystallized nucleus and the latter seems to be based on the secondary growth of recrystallized grain. In the lower manganese content range, the effect of latter may be stronger, but as manganese content increase, the effect of former may be rather more remarkable.
(6) Although it has been belived that the germination has a relation to the recrystallized grain size, there seems to be no relation in the low manganese content range where the grain size is 0.05-0.1m/m The erichsen value of annealed sheet has not any relation to their germination which presented on the surface of the testing cup.抄録全体を表示PDF形式でダウンロード (3997K) -
特に52S合金に就いて播本 寛光, 小野 勝三, 林 安彦, 福井 寛1953 年 1953 巻 9 号 p. 42-46
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーIn the previous payers (Light metals No. 8, 1953-8), one of the authors, Harimoto reported the following current of Al-Mg alloy (52S). We researched on the electrode-potential of this alloy in this paper, after heat treatments which were heated at 100°C, 200°C, 300°C, 350°C, 400°C, 450°C and 500°C. These alloys dipped in the electrolysis of 3%NaCl, 0.1%HCl and 0.5%H2SO4 and then the measured the electrode potential by the Valve Voltmeter.
Conclusion:
1. The effect of the Heat treatments. The electrode potential indicated the low value in the case of the temperatures of the heat treatment are 100°C to 200°C.
2. The effect of the oxide film. The oxide film is thicker, the electrode potential is lower.抄録全体を表示PDF形式でダウンロード (408K) -
呂 戌辰1953 年 1953 巻 9 号 p. 47-56,27
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーThe HCl O4 bath of Jacquet was better than other bath in electoolytic-polishing of Al and Al-alloys.
The results of other bath summarized as follows:
1) High voltage 40-100V
2) Chemical reaction by over-heating of anode
3) It is difficult to obtained the uniform mirror surface
This report is inproved the following points
1) Low voltage 10-20V
2) Uniform a millor surface
3) The new bath of H3PO4-K2Cr2O7
Jererally chemical-polishing can not be applied to Al-alloys.
This report proposed H3PO4-(COOH)3 bath for Duralumin, Y-alloy, Lautal, Silumin, Al-Mg and Al-Cu.抄録全体を表示PDF形式でダウンロード (1225K) -
酸化被膜の生長と陽極の溶解について(第1報)小沼 治作1953 年 1953 巻 9 号 p. 57-62
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーIn this paper, we report the growth of anodic oxid film and consumption of Al anode in anodizing process, and discuss on the practical meaning of the temperature of electrolytic liquid, and the density of current.
The result of experimsnt is as follows.
(1) We anodize Al sheet in sulphurie acid solution at 20-70°C liquid temperature. The weight of anodic oxid film increases at lower temperature of sulphuric acid solution, but decreases at higher temperature than 40°C. At lower temperature, Al anode is scarcely consumpted but oxid film grows steadily. At higher temperature, the consumption of Al anode is great and the growth of oxide film is negligiblc small.
(2) We measured the oxid film weight and consumption of anode in process of oxid film growing. The result shows that the ratio S/F quickly saturate after electrolysis starting.
(3) In anodizing process, it is economocal in power consumption to increase the current density.抄録全体を表示PDF形式でダウンロード (536K) -
直流電解による硫酸皮膜の諸性質に及ぼす影響について国本 隆, 池田 栄三, 西邑 弘, 谷 洋1953 年 1953 巻 9 号 p. 63-68
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーWe have previously reported1) on the effects of working-condition on the properties of anodic oxid film on aluminum in this journal. In these experiments, however, we used the fresh sulphuric acid as the electrolyte. But, in the production practice, the electrolyte may be not always fresh, and therefore the effects of aluminum ion dissolved in electrolyte can not be neglected.
In this report, we studied these problem in our production shop and our laboratory. At first, we measured the increse of dissolved aluminum ion and th decrease of free sulphuric acid by daily analysis of electrolyte of our production shop. And then we studied the effects of aluminum ion which was dissolved in 15% sulphuric acid by adding aluminum sulphide on the properties of anodic oxid film.
The results are as follows.
(1) The increase of dissolved aluminum ion and the decrease of free sulphuric acid are proportional to the anodized area.
(2) The increase of dissolved aluminum ion is proportional to the decrease of electric conductivity of electorolyte
(3) The dissolved aluminum ion has not so remarkable effect on the thickness of film.
(4) As for the corrosion resistance of anodic oxid film, the small amount of dissolved aluminum ion has rather better effect, but it gradually lowers as the dissolved aluminum ion increases more than 0.2%.
(5) The abrasion resistance of anodic oxid film rapidly lowers as the dissolved aluminum ion increases.抄録全体を表示PDF形式でダウンロード (715K) -
山口 秀夫, 坂本 正一, 山本 純行1953 年 1953 巻 9 号 p. 69-73
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーechanical properties of welded Al-Mg Plates differ greatly by the welding methods.
The results oftained are summarized as follows:
(1) Argon arc method is recomended for Al-Mg alloys, for mechanical propertis welded by this method are the best.
(2) Metal arc and oxyacetylene gas method are not recomended for thick Al-Mg plates. Mechanical properties of deposit welded by these methods are extremely inferior to that of mother plates, due to the flux used by those welding methods.
(3) Al-Mg thick plates welded by oxyacetylene gas method happen to have hair crack, owing to the welding heat.抄録全体を表示PDF形式でダウンロード (1002K) -
小林 藤次郎, 永井 孝彦1953 年 1953 巻 9 号 p. 74-87
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーThe three phase resistance welding machine recently imported by The Nippon Aluminium Mfg. Co., Ltd. from Soiaky Bros. Inc. is called PMM 4TC-300-60 rollspot and seam welder (300KVA at 50% duty cycle, short circuit secondary current, max. 130, 000 Amps.) and guranteed to satisfy U. S. Army-Navy Specification AN-W-30.
We are going to report on sequence of various control panels, comparison between 3 phase and single phase welder, weling capacity of this welder, parameters of controls for spot welding two equal thickness of aluminum alloys and mild steel or 18-8 stainless steel, and the joint efficiency of seam-welded joints by this welder compared with that by a Japan made seam welder.抄録全体を表示PDF形式でダウンロード (2962K) -
小林 藤次郎, 稻月 淳1953 年 1953 巻 9 号 p. 88-91
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーSeven years ago, just after surrender of Japan, almost all pan or pot and micellaneous kitchen utensils were produced from duralumin which was scrap of air craft due to the lack of aluminum.
It has been wide by said these day that the foods boiled by them might poison us because of copper contained in duralumin. So, experimentally examing if this copper in filtrate into foods such a degree to poison us or not, we clarifyed our body needs a little bit of copper physically on the contrary thought litertures.
this is a report recorded six years ago (1947).抄録全体を表示PDF形式でダウンロード (914K) -
加藤 正夫, 中村 康治, 柳沢 昇雄, 小松 二郎1953 年 1953 巻 9 号 p. 92-100
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーOn Al-10%Mg casting alloy the authors investigated about metallographical, mechanical and properties, as well as about methods of melting, casting and heat-treatment.
This alloy must be melted in graphite crusible lined with alumina at as posible as low temperature covered with chloride and fluoride flux.
Excellent mechanical properties, especially high ductility and impact resistance, are destroied by addition of small content of Si, although it does not affect on corrosion, resistance.
The alloy which is heat-treated according to DTD specification is slightly superior in the respect of mechanical properties, and on the contrary inferior in corrosion resistance to one according to JIS specification.
The higher the temrerature of solution heat-treatment, the more rapidly increase mechanical properties. In the case of heat treatment, at 400°C, the longer the solution heat-treatment, the higher the mechanical properties, and at 440°C this alloy reach to maximum tensile strength by treatment to 6 hours, and by more duration of heat-treatment decrease this value.
Properties of this alloy cast in various kinds of sand mould, green or baked, containing some protective reagents or none, finer sand or coarser, are compared. Green sand moulds give superior results and likewise addition of sulphor and ammonium sulphate. Enough large riser both in green mould and baked mould is essential to ensure excellent properties of this alloy.抄録全体を表示PDF形式でダウンロード (1327K) -
森永 卓一, 加藤 良雄, 中島 國夫1953 年 1953 巻 9 号 p. 101-106,41
発行日: 1953/11/30
公開日: 2008/10/30
ジャーナル フリーThe 0.08% and 1.0% Carbon steel plates were taken and dipped into the aluminum bath after flux treatments were carried out at 690°, 710°, 730° and 750°C of the aluminum bath temperature and immersion time, 5, 20 and 60 seconds respectively. The main result were summarized as follows,
(1) The range of the effected temperature was existent at 690°-730°.
(2) The excellent properties were obtained on the alloying layer of Fe-Al compound having 0.01-0.03mm抄録全体を表示PDF形式でダウンロード (804K)
- |<
- <
- 1
- >
- >|